PWM1
UNIT PWM Module
Professional electronic component
v1.0
2025-09-29
Rev. A
Product Overview
The UNIT PWM Module is a compact, two-channel PCB designed to amplify pulse-width modulation signals from a microcontroller. It enables reliable switching of external loads at higher voltages and currents than the microcontroller can natively handle. With its clearly labeled screw-terminal connectors, the module is well-suited for motor speed control, high-power LED dimming, and other projects requiring precise power regulation via PWM. The board also includes a QWIIC-compatible 4-pin header, allowing for easy plug-and-play wiring and daisy-chaining of power and PWM signals using standard Qwiic cables.
Product Views
TOP VIEW
Component placement and connectors
BOTTOM VIEW
Underside components and connections
KEY TECHNICAL
SPECIFICATIONS
SPECIFICATIONS
CONNECTIVITY
| Interfaces: | I2C, SPI, UART, ADC |
| Connector: | QWIIC + Pin Headers |
KEY FEATURES
Microcontroller
PY32F003L24D6TR (32-bit ARM Cortex-M0)
Clock Speed Internal
Up to 24 MHz
ADC
12-bit ADC with multiple channels
Memory
16KB Flash, 2KB SRAM
SPI
1 channel
I2C
1 channel
UART
1 channel
ADDITIONAL TECHNICAL INFORMATION
📦 Overview
| Feature | Details |
|---|---|
| 2-channel PWM | Two independent channels for versatile control |
| 5V logic | Compatible with 3.3V and 5V microcontrollers |
| 5V power supply | Powers external devices up to 2A |
| Qwiic connector | 4-pin connector for easy integration |
HARDWARE DOCUMENTATION
MECHANICAL DIMENSIONS
Physical dimensions and mounting specifications (measurements in millimeters)
SYSTEM TOPOLOGY
Connection topology and system integration diagram
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CIRCUIT SCHEMATIC
Complete circuit schematic showing all component connections
